DooDeeDaa

I have followed all the advice i have found online to fix my router. I have factory reset, turned on off, reinstalled router software, most the general fixes. It's a N+ belkin router.

The router is not being picked up by my PC and i have tried to go to the router settings but can't because it's 'not connected' according to it.

The whole issue began when I decided to take the advice of the router software and update, has not been working since.

Ended up buying a new router(and yes it works so it's not my PC that's the issue) so i have a form of wifi but i would like to know if there is anything i can do to fix the old router myself?

I don't have the receipt because i didn't buy it myself and so can't send it in for repair or a refund.

So I bought a case(a long time ago) so my phone wouldn't get scratched or damaged, and what do you know I get this horrible mark from this(http://www.cellpig.com/media/catalog/product/cache... case and it won't come off, it's a slightly white smudge looking mark, any ideas or on removing it? and is there anything I can make the company do that sold me the case that left this mark? or will they be likely to respond with 'you should have taken it off more often'?